Ground-Water Information Center Water Quality Report Site Name: BOSTWICK CREEK BOST Report Date: 4/25/2024 Compare to Water Quality Standards Location Information Sample Id/Site Id: 2011Q0628 / 259628 Sample Date: 10/6/2010 12:00:00 PM Location (TRS): 01S 06E 05 BC Agency/Sampler: MBMG / SCHAFFER, MARK A. Latitude/Longitude: 45° 46' 59" N 111° 1' 2" W Field Number: BOST Datum: WGS84 Lab Date: 2/18/2011 Altitude: Lab/Analyst: MBMG / SM County/State: GALLATIN / MT Sample Method/Handling: / 4000 Site Type: STREAM Procedure Type: DISSOLVED Geology: Staff Gage Reading: NR USGS 7.5' Quad: MISER CREEK Stream Stage: NR PWS Id: Stream Discharge (cfs): NR  -  NR Project: BRIDGER Stream Width (ft): NR  -  NR Sample Water Use: Sample Depth (ft): NR  -  NR Major Ion Results mg/L meq/L mg/L meq/L Calcium (Ca) 30.900 1.542 Bicarbonate (HCO3) 130.800 2.144 Magnesium (Mg) 7.270 0.598 Carbonate (CO3) 1.220 0.044 Sodium (Na) 1.930 0.084 Chloride (Cl) <0.5 0.000 Potassium (K) 1.980 0.051 Sulfate (SO4) 6.480 0.135 Iron (Fe) <0.002 0.000 Nitrate (as N) 0.093 0.007 Manganese (Mn) <0.001 0.000 Fluoride (F) 0.062 0.003 Silica (SiO2) 8.090 Orthophosphate (as P) <0.1 0.000 Total Cations 2.277 Total Anions 2.332 Trace Element Results (µg/L) Aluminum (Al): <2.0 Cesium (Cs): <0.5 Molybdenum (Mo): 0.785 Strontium (Sr): 57.400 Antimony (Sb): <0.2 Chromium (Cr): 0.344 Nickel (Ni): 1.310 Thallium (Tl): <0.2 Arsenic (As): 0.213 Cobalt (Co): <0.2 Niobium (Nb): <0.5 Thorium (Th): <0.2 Barium (Ba): 28.700 Copper (Cu): <0.5 Neodymium (Nd): <0.2 Tin (Sn): <0.5 Beryllium (Be): <0.2 Gallium (Ga): <0.2 Palladium (Pd): <0.5 Titanium (Ti): <0.2 Boron (B): 5.450 Lanthanum (La): <0.2 Praseodymium (Pr): <0.2 Tungsten (W): <0.2 Bromide (Br): <50 Lead (Pb): <0.2 Rubidium (Rb): 1.180 Uranium (U): 1.600 Cadmium (Cd): <0.2 Lithium (Li): <2.0 Silver (Ag): <0.2 Vanadium (V): 0.423 Cerium (Ce): <0.2 Mercury (Hg): NR Selenium (Se): <0.2 Zinc (Zn): <0.5 Zirconium (Zr): <0.2 Field Chemistry and Other Analytical Results **Total Dissolved Solids (mg/L): 121.7 Field Hardness as CaCO3 (mg/L): NR Ammonia (mg/L): NR **Sum of Diss. Constituents (mg/L): 188.17 Hardness as CaCO3: 107.08 T.P. Hydrocarbons (µg/L): NR Field Conductivity (µmhos): NR Field Alkalinity as CaCO3 (mg/L): NR PCP (µg/L): NR Lab Conductivity (µmhos): 237 Alkalinity as CaCO3 (mg/L): 109.11 Phosphorus, TD (mg/L): <0.025 Field pH: NR Ryznar Stability Index: 7.554 Field Nitrate (mg/L): NR Lab pH: 8.39 Sodium Adsorption Ratio: 0.0841 Field Dissolved O2 (mg/L): NR Water Temp (°C): NR Langlier Saturation Index: 0.418 Field Chloride (mg/L): NR Air Temp (°C): NR Nitrite (mg/L as N): <0.05 Field Redox (mV): NR Nitrate + Nitrite (mg/L as N) <0.2 P Hydroxide (mg/L as OH): NR Lab, Dissolved Organic Carbon (mg/L): NR Total Kjeldahl Nitrogen (mg/L as N) NR Lab, Dissolved Inorganic Carbon (mg/L): NR Lab, Total Organic Carbon (mg/L): NR Total Nitrogen (mg/L as N) <1.0 P Acidity to 4.5 (mg/L CaCO3) NR Acidity to 8.3 (mg/L CaCO3) NR As(III) (ug/L) NR As(V) (ug/L) NR Total Susp Solids (mg/L) NR Notes Sample Condition: Field Remarks: Lab Remarks:

Explanation: mg/L = milligrams per Liter; µg/L = micrograms per Liter; ft = feet; NR = No Reading in GWIC Qualifiers: J = Estimated quantity above detection limit but below reporting limit; P = Preserved sample; S = Method of standard additions; U = Undetected quantity below detection limit; * = Duplicate analysis not within control limits; ** = Sum of Dissolved Constituents is the sum of major cations (Na, Ca, K, Mg, Mn, Fe) and anions (HCO3, CO3, SO4, Cl, SiO2, NO3, F) in mg/L. Total Dissolved Solids is reported as equivalent weight of evaporation residue. Disclaimer These data represent the contents of the GWIC databases at the Montana Bureau of Mines and Geology at the time and date of the retrieval. The information is considered unpublished and is subject to correction and review on a daily basis. The Bureau warrants the accurate transmission of the data to the original end user. Retransmission of the data to other users is discouraged and the Bureau claims no responsibility if the material is retransmitted.